Добрый день. Подскажите как сделать страницам разные шаблоны? Good day. Tell me how to make the pages different templates?

My page template has a posts section on it, and any time I try to edit my blog/posts pages... it changes all of my other pages. I cannot figure out why the posts section was on the page template to...

The image shows my About Me template for the About Me page. But the Template: Home is in there, and AFAIK has no content, so I want to remove it? There doesn't seem to be an obvious way to remove...